
.newtons-cradle_warp{
  display: flex;
  justify-content: center;
  align-items: center;
}
.newtons-cradle {
  width: 1px;
  height: 15px;
  background: #666;
  animation: twinkleAnimate 0.8s linear infinite;
  margin-left: 5px;
}

@keyframes twinkleAnimate {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
